It's now well known that consumption of sodas is equivalent to taking in empty calories as they do no possess any nutritional value and it is now feared that the widespread consumption (and its steady increase especially in the west) is one of the major reasons behind obesity. Thus switching from soda is what many are thinking of & giving them a good reason is seltzer water which has the zing of the soda without the calories. Basically it's just regular water carbonated, and some having minerals that are often not found in everyday meals. Above all, the regular sodas have dehydrating tendecies, while these tasty zippy water rehydates and quench your thirst with the flavor intact.